import assert from 'node:assert/strict';
import test from 'node:test';
import {
  assertConversationArtifactKind,
  buildConversationDisplayFolderName,
  buildConversationPackageManifest,
  buildConversationPackageUri,
  buildConversationStoragePrefix,
  createConversationArtifact,
  createConversationPackageRecord,
} from './mindspace-conversation-package.mjs';

test('buildConversationStoragePrefix produces backend-neutral object prefixes', () => {
  assert.equal(
    buildConversationStoragePrefix({ userId: 'user-1', sessionId: 'session-1' }),
    'users/user-1/conversations/session-1',
  );
  assert.equal(
    buildConversationPackageUri({ userId: 'user 1', sessionId: 'session:1' }),
    'mindspace://users/user%201/conversations/session%3A1',
  );
});

test('buildConversationStoragePrefix rejects path separators', () => {
  assert.throws(
    () => buildConversationStoragePrefix({ userId: '../user', sessionId: 'session-1' }),
    (error) => error.code === 'invalid_storage_segment',
  );
  assert.throws(
    () => buildConversationStoragePrefix({ userId: 'user-1', sessionId: 'a/b' }),
    (error) => error.code === 'invalid_storage_segment',
  );
});

test('createConversationPackageRecord defaults storage prefix and timestamps', () => {
  assert.deepEqual(
    createConversationPackageRecord({
      id: 'cp_custom',
      userId: 'user-1',
      sessionId: 'session-1',
      title: '旅行页面',
      now: 1000,
    }),
    {
      id: 'cp_custom',
      userId: 'user-1',
      sessionId: 'session-1',
      title: '旅行页面',
      status: 'active',
      storagePrefix: 'users/user-1/conversations/session-1',
      manifestAssetId: null,
      createdAt: 1000,
      updatedAt: 1000,
    },
  );
});

test('buildConversationDisplayFolderName prefers title and hides internal ids', () => {
  assert.equal(buildConversationDisplayFolderName('旅行计划'), '旅行计划');
  assert.equal(buildConversationDisplayFolderName('  '), '本次对话文件夹');
});

test('createConversationArtifact validates artifact kind and preserves provenance', () => {
  assert.equal(assertConversationArtifactKind('public_html'), 'public_html');
  assert.throws(
    () => assertConversationArtifactKind('random_blob'),
    (error) => error.code === 'unsupported_conversation_artifact_kind',
  );

  const artifact = createConversationArtifact({
    id: 'ca_1',
    packageId: 'cp_1',
    artifactKind: 'public_html',
    assetId: 'asset-1',
    pageId: 'page-1',
    publicationId: 'pub-1',
    agentRunId: 'run-1',
    messageId: 'msg-1',
    displayName: 'report.html',
    mimeType: 'text/html',
    sizeBytes: 120,
    storageKey: 'users/user-1/conversations/session-1/public/report.html',
    canonicalUrl: 'https://m.tkmind.cn/MindSpace/user-1/public/report.html',
    sortOrder: 2,
    now: 2000,
  });

  assert.equal(artifact.packageId, 'cp_1');
  assert.equal(artifact.artifactKind, 'public_html');
  assert.equal(artifact.assetId, 'asset-1');
  assert.equal(artifact.pageId, 'page-1');
  assert.equal(artifact.publicationId, 'pub-1');
  assert.equal(artifact.messageId, 'msg-1');
});

test('createConversationArtifact preserves unknown size as null', () => {
  const artifact = createConversationArtifact({
    packageId: 'cp_1',
    artifactKind: 'generated_file',
    sizeBytes: null,
    now: 1000,
  });

  assert.equal(artifact.sizeBytes, null);
});

test('createConversationArtifact keeps sort order inside MySQL INT range', () => {
  const artifact = createConversationArtifact({
    packageId: 'cp_1',
    artifactKind: 'public_html',
    sortOrder: 1783003000123,
    now: 1000,
  });
  assert.equal(artifact.sortOrder, 1783003000);

  const clamped = createConversationArtifact({
    packageId: 'cp_1',
    artifactKind: 'public_html',
    sortOrder: Number.MAX_SAFE_INTEGER,
    now: 1000,
  });
  assert.equal(clamped.sortOrder, 2147483647);
});

test('buildConversationPackageManifest sorts artifacts and emits stable public shape', () => {
  const manifest = buildConversationPackageManifest({
    packageRecord: {
      id: 'cp_1',
      userId: 'user-1',
      sessionId: 'session-1',
      title: '项目周报',
      now: 1000,
    },
    artifacts: [
      {
        id: 'ca_late',
        artifactKind: 'page',
        displayName: '项目周报',
        pageId: 'page-1',
        messageId: 'msg-2',
        agentRunId: 'run-1',
        sortOrder: 2,
        createdAt: 3000,
      },
      {
        id: 'ca_first',
        artifactKind: 'input_image',
        displayName: 'cover.png',
        messageId: 'msg-1',
        sortOrder: 1,
        createdAt: 2000,
      },
      {
        id: 'ca_public',
        artifactKind: 'public_html',
        displayName: 'report.html',
        pageId: 'page-1',
        publicationId: 'pub-1',
        messageId: 'msg-2',
        agentRunId: 'run-1',
        canonicalUrl: 'https://m.tkmind.cn/MindSpace/user-1/public/report.html',
        sortOrder: 3,
        createdAt: 4000,
      },
    ],
  });

  assert.equal(manifest.schemaVersion, 1);
  assert.equal(manifest.uri, 'mindspace://users/user-1/conversations/session-1');
  assert.equal(manifest.displayFolderName, '项目周报');
  assert.equal(manifest.storagePrefix, 'users/user-1/conversations/session-1');
  assert.deepEqual(
    manifest.artifacts.map((artifact) => artifact.artifactId),
    ['ca_first', 'ca_late', 'ca_public'],
  );
  assert.deepEqual(manifest.artifacts[0], {
    artifactId: 'ca_first',
    kind: 'input_image',
    messageId: 'msg-1',
    displayName: 'cover.png',
    sortOrder: 1,
    createdAt: 2000,
  });
  assert.deepEqual(manifest.pages, [
    {
      pageId: 'page-1',
      artifactIds: ['ca_late', 'ca_public'],
      displayName: '项目周报',
      canonicalUrl: 'https://m.tkmind.cn/MindSpace/user-1/public/report.html',
      createdAt: 3000,
      updatedAt: 4000,
    },
  ]);
  assert.deepEqual(manifest.publications, [
    {
      publicationId: 'pub-1',
      artifactIds: ['ca_public'],
      displayName: 'report.html',
      canonicalUrl: 'https://m.tkmind.cn/MindSpace/user-1/public/report.html',
      createdAt: 4000,
      updatedAt: 4000,
    },
  ]);
  assert.deepEqual(manifest.messages, [
    {
      messageId: 'msg-1',
      artifactIds: ['ca_first'],
      kinds: ['input_image'],
      createdAt: 2000,
      updatedAt: 2000,
    },
    {
      messageId: 'msg-2',
      artifactIds: ['ca_late', 'ca_public'],
      kinds: ['page', 'public_html'],
      createdAt: 3000,
      updatedAt: 4000,
    },
  ]);
  assert.deepEqual(manifest.agentRuns, [
    {
      agentRunId: 'run-1',
      artifactIds: ['ca_late', 'ca_public'],
      kinds: ['page', 'public_html'],
      createdAt: 3000,
      updatedAt: 4000,
    },
  ]);
});